Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/91420
Título: | Designing an antimicrobial film for wound applications incorporating bacteriophages and ε-poly-L-lysine |
Autor(es): | Pinto, Ana M. Pereira, Raquel Martins, Artur J. Pastrana, Lorenzo M. Cerqueira, Miguel A. Sillankorva, Sanna |
Palavras-chave: | Biodegradable Sodium alginate Gelatin Active film Wound healing Bacteriophage |
Data: | 2024 |
Editora: | Elsevier 1 |
Revista: | International Journal of Biological Macromolecules |
Citação: | Pinto, Ana; Pereira, Raquel; Martins, Artur J.; Pastrana, Lorenzo M.; Cerqueira, Miguel A.; Sillankorva, Sanna, Designing an antimicrobial film for wound applications incorporating bacteriophages and -poly-l-lysine. International Journal of Biological Macromolecules, 268, Part 2(131963), 2024 |
Resumo(s): | Alginate-based dressings have been shown to promote wound healing, leveraging the unique properties of alginate. This work aimed to develop and characterize flexible individual and bilayered films to deliver bacteriophages (phages) and -Poly-l-lysine (-PLL). Films varied in different properties. The moisture content, swelling and solubility increased with higher alginate concentrations. The water vapour permeability, crucial in biomedical films to balance moisture levels for effective wound healing, reached optimal levels in bilayer films, indicating these will be able to sustain an ideal moist environment. The bilayer films showed improved ductility (lower tensile strength and increased elongation at break) compared to individual films. The incorporated phages maintained viability for 12 weeks under vacuum and refrigerated conditions, and their release was sustained and gradual. Antibacterial immersion tests showed that films with phages and -PLL significantly inhibited Pseudomonas aeruginosa PAO1 growth (>3.1 Log CFU/cm2). Particle release was influenced by the swelling degree and diffusional processes within the polymer network, providing insights into controlled release mechanisms for particles of varying size (50 nm to 6 m) and charge. The films developed, demonstrated modulated release capabilities for active agents, and may show potential as controlled delivery systems for phages and wound healing adjuvants. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/91420 |
DOI: | 10.1016/j.ijbiomac.2024.131963 |
ISSN: | 0141-8130 |
Versão da editora: | http://www.elsevier.com/locate/issn/01418130 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_57726_1.pdf | 2,53 MB | Adobe PDF | Ver/Abrir |